Application of ammonium sulfate in exchange-reducing sodium process of ultra-stable Y zeolite 硫酸铵在超稳分子筛交换降钠工艺中的应用
Study on the Removal of Low Concentration Ammonia Nitrogen in Drinking Water Using Sodium Chloride Activated Zeolite 氯化钠改性沸石对饮用水中低浓度氨氮的吸附性能分析
Montmorillonite, quartz and cristobalite can be corroded by sodium hydroxide solution, but will introduce new impurity phase similar to zeolite. 氢氧化钠溶蚀法会对蒙脱石、石英和方石英同时产生溶蚀,引入新的物相杂质。
The builder capability of sodium salt of maleic anhydride-acrylic acid copolymer, STPP and4A zeolite is compared. 比较了马来酸酐-丙烯酸的共聚物的钠盐与三聚磷酸钠、4A沸石的助洗性能。
Effects of vanadium and sodium trapping agent on the structure and catalytic properties of vanadium poisoned USY zeolite were extensively investigated by MAT, XRD, NH 3 TG TPD and BET technologies. 采用MAT、XRD、NH3-TG-TPD、BET技术,考察了钠离子与捕钒钠剂对钒中毒USY分子筛结构和性能的影响。
Zeolite ( 4A) and sodium metasilicates are largely used as phosphate-free detergent builders in industry. There is a potential pollution because of the zeolite containing Al 3+. The softening water capability of sodium metasilicate is poor. 目前工业上大量使用的无磷洗涤助剂为4A沸石和偏硅酸钠,4A存在潜在的铝污染问题,而偏硅酸钠的抗硬水性差。
In the hydrothermal treatment system of dehydrated/ kaolin and sodium hydroxide, the metakaolinite, which is dissolved gradually during reaction, provides not only Al 2O 3 and SiO 2 but also the nucleation centers for formating zeolite 4A. 煅烧高岭土与氢氧化钠的水热反应体系中,偏高岭石不仅为4A沸石的形成提供了物质基础,而且为晶核的形成提供了有利界面。
Results indicated that sodium accumulation on USY sample could accelerate the vanadium poisoning of USY zeolite and the destruction of crystalline structure and the decrease of the surface area, bore volume, surface acid sites, and cracking activity of the zeolite. 结果表明,钠离子的存在,加剧了USY分子筛的钒中毒深度,导致分子筛晶体结构的进一步破坏,使分子筛的比表面积、孔容、表面酸量及裂解活性等性能明显降低。
An ion selective electrode method was developed for determination of sodium in ion-exchange zeolite. 用离子选择性电极法测定分子筛交换中钠离子的含量。
The Ionic Conductivity of Sodium Zeolite A Exchanged With Different Lanthanum Contents 交换有La~(3+)离子的NaA型分子筛的交流电导研究
This paper describes the study of low phosphate style concentrate laundry powder prescription that part of the sodium tripolyphosphate is superseded by the natural zeolite. 本文介绍了以天然沸石取代部分三聚磷酸钠(五钠)的浓缩洗衣粉(浓缩粉)配方的研究。
Sodium Deposition in the EDS Analysis of Zeolite Molecular Sieves 沸石分子筛X-射线能谱分析中的Na沉积
The status quo of the research on phosphate free builders is introduced and the properties of 4A zeolite, sodium metasilicate, sodium polyacrylate, zeolite P, sodium salt of maleic anhydride acrylic acid copolymer, layered crystal sodium disilicate as phosphate free builders are reviewed. 综述了无磷洗涤助剂的开发进展,并对4A沸石、偏硅酸钠、聚丙烯酸钠、沸石P、顺丁烯二酸酐丙烯酸共聚物钠盐、层状结晶二硅酸钠等助剂的性能作了评述;
In the field of detergent ingredients, sodium tripolyphosphate. zeolite A and crystalline layered disilicate SKS-6 are well-established builders. 在洗涤剂组分中,三聚磷酸钠、A型沸石和层状结晶二硅酸盐SKS-6已是被广泛接受的助剂。
The anaphase activation exists in three different stabilizers, sodium silicate, magnesium sulphate, modified zeolite and layer crystalline sodium silicate. 在硅酸钠、硫酸镁,改性蛋白石和层硅这三种不同的稳定体系中都存在着后程活化效应。
After separating the spent liquor, add amount of sodium aluminate solution to make alun gel. Then quality 13X zeolite could be produced after a certain crystallization, and used as adsorbent and desiccant, which maximizes the utilization of resources. 将晶化母液分离处理后,在晶化母液中加入一定量的铝酸钠溶液成胶、晶化可制备出合格的13X型沸石,作为吸附干燥剂使用,以便最大化的利用资源。
The process of in-situ crystallization is that the roasted microparticles in the liquid phase convert into sodium silicoaluminate gel first and then the gels convert into zeolite Y gradually. 原位晶化过程是焙烧微球在液相组分中先转变为硅铝酸钠凝胶,随后硅铝酸钠凝胶逐步地转变为Y型沸石。
Tetraethyl ammonium hydroxide ( organic template), silica gel ( silica source) and sodium meta-aluminate ( aluminum source) were used to p-zeolite synthesis and template removal in microwave radiation. 以粗孔硅胶为硅源,偏铝酸钠为铝源,四乙基氢氧化铵为模板剂,在微波辐射条件下,合成β沸石并脱除模板剂。
Effects of vanadium and sodium trapping agent on structure and catalytic properties of vanadium poisoned USY Zeolite 捕钒钠剂对钒中毒USY分子筛结构和性能的影响
XRD analysis showed that material phase changed with the increase of temperature, the peak of quartz phase obviously decreased, and the phases such as mullite, rhombic sodium zeolite and amorphous appeared. 物相分析表明,随着温度的升高,污泥灰逐渐发生变化,石英相峰值明显降低,转化出现莫来石、斜方钠沸石等物相,并有非晶态无定形物相出现。